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  • Title: Comparative analysis of melanins and melanosomes produced by various coat color mutants.
    Author: Prota G, Lamoreux ML, Muller J, Kobayashi T, Napolitano A, Vincensi MR, Sakai C, Hearing VJ.
    Journal: Pigment Cell Res; 1995 Jun; 8(3):153-63. PubMed ID: 7567792.
    Abstract:
    Pigmentation in the skin, hair, and eyes of animals is influenced by a number of genes that modulate the activity of melanocytes, the intervention of enzymatic controls at different stages of the melanogenic process, and the physico-chemical properties of the final pigment. The results of combined phenotypic, ultrastructural, biochemical, and chemical analyses of hairs of a variety of defined genotypes on a common genetic background performed in this study are consistent with the view that pigmentation of dark to black hairs results from the incorporation of eumelanin pigments whereas that of yellow hairs results from the incorporation of eu- and pheomelanins. It is also clear that relatively minor differences in melanin content can have dramatic effects on visible hair color. A good correlation was found for expression of (and enzyme activities associated with) TRP1 and TRP2 with eumelanin synthesis and eumelanosome production.
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